Charleston County sales tax rate, South Carolina
Quick answer
Combined sales tax in Charleston County runs 9% across the cities we cover, on top of South Carolina's 6% state rate. The county share is a separate line from any city or special-district increment, which is why two addresses in the same county can pay different totals.
Cities in Charleston County
County share shown separately from the city and district layers.
| City | State | County | City + districts | Combined |
|---|---|---|---|---|
| Charleston | 6% | 2% | 1% | 9% |
Source: South Carolina Department of Revenue · rates as published for 2026